Device for separating gases from hot water



H. WEHNER. DEVICE FOR SEPARATING GASES FROM HOT WATER.

APPLICATION FILED JULY 31- I914- Patented Dec. 6, 1921.

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DEVICE FOR SEPARATING GASES FROM HUT "WATER.

Application filed July 31,

Specification of Letters Patent.

Patented .Uee. it)? it a (GRANTED UNDER THE PROVISIQNE THE AUT OF MARCH3, 1921, Q1 STAT. 11., 1313.)

To all whom it may concern Be it known that l, HniNniori WEIi-INEB, acitizen of the German Empire, residing at Frankfort-on-thel /lain, inGermany, have invented certain new and useful Improvements in Devicesfor Separating Gases from Hot Water, (for which I have made applicationin Germany, July 31, 1918,) of which the following is a specification.

The object of this invention is to provide improved means for separatinggases such as carbon dioxid and oxygen, from water, mainly for thepurpose of preventing corrosion of metal with which the water is broughtinto contact, as for example in hot water heating installations forbuildings.

In the accompanying drawing Figure 1 is a vertical section of myapparatus and Fig. 2 is a fragmentary sectional view ofa modification.

1 designates the orifice of a water heater or boiler, from which rises ashort pipe 2 standing within a chamber 3. In the latter there is ahorizontal strainer 4., through which the pipe 2 passes, the pipeterminating just above the said strainer. Below the strainer there is aperforated annular pipe 5, joined to a pipe 6, which passes out of thechamber 3.

The roof 7 of the chamber 3 is funnel shaped, and is closed at the topby an automatic valve 8, opening outward. The roof consists of heatinsulating material,

such as vulcanite, papier mach orv the like,

and is surrounded by a dome-like chamber 9, which has induction andeduction ports 10 for cold water.

Around the tubular part of the roof 7 there is a float 11, having ducts12 enabling steam and gas to be discharged through the float from thechamber 3 when the valve 8 is open. When the float 11 is lifted it actsas a valve closing the lower orifice of a short discharge pipe 13leading out of the chamber 9. This discharge pipe can be closed by meansof a screw cap 14.

The action of the device is as follows:

Water from the boiler or heater, carrying gas in the form of minutebubbles, rises through the pipe 2, and is then deflected downward, asindicated by arrows in the drawing, so that it passes through thestrainer a and into the perforated pipe 5, from which it is dischargedthrough the pipe 6. The minute bubbles of are retained by the strainera, to which they adhere until in course of time they merge into largerbubbles having sufficient buoyancy to detach themselves and rise.

li may increase the efliciency of the device, for retaining gas bubbles,by partly filling the space below the strainer with neutral granularslag, quartz or other insoluble material, as shown in Fig. 2. e

The gas which is liberated by the bubbles detached from the strainer arises, together with steam, through the tubular part of the roof 7, andpasses through the ducts 12 into the chamber 9, the steam' beingcondensed by contact with the cold float and walls of the chamber 9.That part of the gas (chiefly carbon CllOXlCl, oxygen and nitrogen)which is not absorbed by the condensate and the cold water flowingthrough the chamber 9, accumulates in the upper part of the said chamberuntil its pressure is sufficient to depress the float 1.1 and open thelower orifice of the pipe 13, through which the gas escapes, allowingthe float to rise again and close the pipe 13 until the pressure underthe dome again depresses the float.

What ll claim as my invention and desire to secure by Letters Patent ofthe United States is 1. In apparatus for the purpose set forth, thecombination of a chamber having an inlet and an outlet for hot water, astrainer in said chamber, a second chamber having an inlet and an outletfor cold water and an outlet for gas, a partition between said chambers,having an orifice enabling steam and gas to pass from the firstmentioned chamber to the second mentioned chamber, and a float in thesecond mentioned chamber, adapted to close the gas outlet of saidchamber and to be removed from said outlet by gas accumulating in saidchamber.

2. In apparatus for the purpose set forth, the combination of a chamberhaving an inlet and an outlet for hot water, a strainer in said chamber,a second chamber having an inlet and an outlet for cold water and anoutlet for gas, a heat insulating partition between said chambers,having an orifice enabling steam and gas to pass from the firstmentioned chamber to the second mentioned chamber, and a float in thesecond mentioned chamber, adapted to close the gas outlet of saidchamber and to be removed from said outlet by gas accumulating in saidchamber.

3. In apparatus for the purpose set forth, the combination of a hotWater chamber having a roof of heat insulating material, said roofhaving an orifice, an outwardly open- 111g valve in said orifice, astrainer in said chamber, an inlet pipe extending through said strainer,an outlet pipe below said strainer, a cold water chamber above saidroof, havlng a gas discharge orifice, and a float 1n sald cold Waterchamber, adapted to close said gas discharge orifice. 15 In Witnesswhereof I have signed this specification 1n the presence of twoWitnesses.

HEINRICH \VEHNER.

Vvitnesses:

JEAN GRUND, CARL GRUND.

